General Description

The MAX3795 is a high-speed VCSEL driver for small-form-factor (SFF) and small-form-factor pluggable (SFP) fiber optic transmitters. It contains a bias generator, a laser modulator, and comprehensive safety features. The automatic power control (APC) adjusts the laser bias current to maintain average optical power over changes in temperature and laser properties. The driver accommodates common-cathode and differential configurations.

Features

♦ Supports All SFF-8472 Digital Diagnostics

♦ 3.3V ±10 Single Supply

♦ 2mA to 15mA Modulation Current

♦ 1mA to 15mA Bias Current

♦ 52ps Transition Time

♦ 8.4ps Deterministic Jitter

♦ Optional Peaking Current to Improve VCSEL Edge Speed

♦ Supports Common-Cathode and Differential Configuration

♦ Safety Circuits Compliant with SFF and SFP MSAs

♦ Pin Compatible to MAX3740A

Applications

    Multirate (1Gbps to 4.25Gbps) SFP/SFF Modules

    Gigabit Ethernet Optical Transmitters

    Fibre-Channel Optical Transmitters